parse.y: force_encoding

* parse.y (str_suffix_gen): String#b creates new string object, use
  force_encoding instead.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42775 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Mon Sep  2 17:53:33 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (str_suffix_gen): String#b creates new string object, use
+	  force_encoding instead.
+
 Mon Sep  2 16:06:00 2013  Charlie Somerville  <charliesome@ruby-lang.org>
 
 	* NEWS: Add note about frozen string literals

parse.y

@@ -6006,12 +6006,12 @@ parser_str_options(struct parser_params *parser)
 	switch (c) {
 #if STR_OPTION_FROZEN
 	  case 'f':
-            options |= STR_OPTION_FROZEN;
+	    options |= STR_OPTION_FROZEN;
 	    break;
 #endif
 #if STR_OPTION_BINARY
 	  case 'b':
-            options |= STR_OPTION_BINARY;
+	    options |= STR_OPTION_BINARY;
 	    break;
 #endif
 	  default:
@@ -8576,7 +8576,9 @@ str_suffix_gen(struct parser_params *parser, NODE *node, long opt)
     else {
 #if STR_OPTION_BINARY
 	if (opt & STR_OPTION_BINARY) {
-	    node = NEW_CALL(node, rb_intern("b"), 0);
+	    VALUE ascii8bit = rb_enc_from_encoding(rb_ascii8bit_encoding());
+	    NODE *args = NEW_LIST(NEW_LIT(ascii8bit));
+	    node = NEW_CALL(node, rb_intern("force_encoding"), args);
 	}
 #endif
 #if STR_OPTION_FROZEN